The Toyama Plain is good farmland and historically it was a point of strategic and traffic importance. During the Feudal Age, it was frequently turned into a battlefield. Toward the end of the period of confusion, Sassa Narimasa became the governor of Etchū Province (the ancient name for present Toyama), and he accomplished the feat of taming the rampaging rivers, bringing about an even more flourishing agricultural industry in Toyama. In the early Edo Period, a positive industrial promotion policy was implemented on the production of medicine and washi (Japanese paper). Also, thanks to the improvement of both land and sea transportation routes, these industries thrived and Toyama became known nationwide as the province of medicine.

After the Meiji Restoration, heavy and chemical industries developed in Toyama, based on abundant electricity which was generated in some hydro power stations in the mountains near-by. During World War II, Allied POWs were sent to Toyama as forced labor.[1] Although the streets of Toyama were devastated by an air raid in August 1945, Toyama has become one of the most influential cities on the Japan Sea side with its good water supply, drainage system and thriving agricultural, forestry, fishery, commercial and manufacturing industries.

The city was completely destroyed on the night of August 1–2, 1945, possibly due to it being a major center for the Japanese military holding American prisoners of war. At the time of the bombing, the city was a center for aluminum, ball-bearing and special steel production.[2][3] The city during the time had a population of around 150,000 residents.

Toyama has a humid subtropical climate (Köppen climate classificationCfa) with hot, humid summers and cool winters. Precipitation is abundant throughout the year, particularly in July, September and from November through January. Despite winter in Toyama being relatively mild, its position near the Sea of Japan places it within the heavy snow belt of Japan and on average 3.8 m (12 ft) of snow falls each season, almost all of it from December through March, as well as occasionally experiencing some tremendous amounts of snowfall.

Toyama Chindon Contest (Toyama Band of musical sandwichmen contest) - proposed by the Toyama Chamber of Commerce in 1955 and is held annually in early April. This event has become a festival, and many bands of sandwichmen (men wearing sandwich boards for advertisements) participate, attracting many tourists every year. But in 2011, the event was cancelled in the wake of the 2011 Tohoku earthquake and tsunami.[citation needed]